I've not a clue. However, a while back my wife was complaining that her SUV's steering wheel was slipping out of her hands and it felt the same when I drove it. Found this little gem on eBay for $18 and she loved it and so did I. So I bought another for my SUV and love it. I've now had it on 4 vehicles including two MME GT's.
Maybe it looks a bit dorky, but I'm amazed at the additional control that I think / feel that I have with it. Those little gray rubber stoppers help ensure that your fingers stay firmly in place and you can even rest your fingers (obviously resting one's hands too) between them. I hope to have something comparable to this on any vehicle we own.